PATCH: radeondrm x86_64 and android32

[Christian König]

Am 15.09.2014 um 12:09 schrieb Sergey Korshunoff:
> Android-x86 4.0-r1 (32 bit) have problems with x86_64 kernel when he
> trying to use a radeon kms. The following change correct a problem:
>
> drivers/gpu/drm/radeon_kms.c (function radeon_info_ioctl):
>
> - value_ptr = (uint32_t *)((unsigned long)info->value);
> + value_ptr = (uint32_t *)((unsigned)info->value);
>
> Looks like a userspace data in android running under x86_64 is located
> above 4 Gb. I don't think so. But after this change android run fine.

That's most likely a bug on the userspace side, caused by the upper 
32bits of info->value not initialized properly.

The kernel patch you show above will most likely just break 64bit userspace.

Regards,
Christian.

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